US1502378A

US1502378A - Carburetor

Info

Publication number: US1502378A
Application number: US482538A
Authority: US
Inventors: Herman C Dreis
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-07-05
Filing date: 1921-07-05
Publication date: 1924-07-22
Anticipated expiration: 1941-07-22

Description

July 22 1924. 1,502,378

- p. DREIS 'GA'HBURETOR Filed July 5, 1921 FIGURE 1 FIGURE 6 FIGURE 4 mvsn'ron v v M (5 w 7 ATTORNEY Patented July 22, 1924.

UNITED STATES HERMAN C. DREIS, OF NEAR SAN JOSE, CALTFORNIA.

OARBURETOR.

Application filed July 5, 1921.' Serial No. 482,538.

To all whom it may concern:

Be it known that I, HERMAN C. DREIS, a citizen of the United States, and residing near San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Carburetors, of which the following is a specification.

The object of the invention is to provide a means for measuring out desired quantities of fuel in internal combustion engines. A particular object is to provide a measuring element provided with a positive fuel feed and discharge.

In the drawing,-

Figure 1 is a sectional view on line 11 of Figure 2.

Figure 2 is a section on line 2-2 of Figure 1.

Figure 3 is a detail elevation of the measuring element closed, part broken away.

Figure 4 is a detail elevation of the measuring element partly opened, part broken away.

Figure 5 is a detail of the float mountm in the drawing, 1 is a carburetor casing, 2 the fuel chamber provided with floats 3, connected by rod 3 and 4 the fuel inlet provided with a needle valve 4*, which is opened or closed by the action of arm 24 against the spring 4". The carbureting chamber is shown at 5, the opening 6 in casing 1 communicating therewith. At 5 is an auxiliary air inlet to carbureting chamber 5 controlled by a valve 5 and at 5 is a conduit by means of which the fuel mixture prepared in chamber 5 is conducted to the engine, not shown, A hollow shaft 7 is fixed in casing 1 and carries a shield 8 on spokes 9 and web 10, web 10 having a slot 11 therein communicating with hollow shaft 7 and the exterior of shield 8, and shield 8 being formed to provide an air passage 12 above its upper portion.

Fitting closely between casing 1 and shield 8 is a

drum having openings

13 and 14 formed in two

parts

13 and 14 connected by interlocking fingers 15-16, part 13 being revolubly mounted on shaft 7 by sleeve 17 driven by gear 18, and part 14' being mounted on shaft 7 by sleeve 19 and ad vanced or retracted by lever 20. At 21 is a screened air inlet through casing 1 which communicates with air passages 12 through the pockets 22 formed by the interlacing fingers 15-16 of drum 1814. This construction insures a supply of air to passage 12 in the event slot 11 or the passagethrough shaft 7 becomes obstructed.

Pockets 22 of desired capacity formed in the drum by advancing or retracting part 14, are filled with fuel by immersion therein. The fuel is held in pockets 22 by shield 8 and casing. 1 until it reaches opening 6 where the air passage 12 permits its quick removal.

Revolving drum 1314 produces different fuel levels in opposite sides of chamber 2, therefore floats 3 are swiveled at 23 in bellcrank 24. This is deemed necessary because when the drum 1314 is in operation the lower level of the fuel on the side from which the drum is revolving would so far reduce the buoyant force of the fuel on the float on that side that it would operate the part 24 to introduce fuel before it is needed if the floats and part 24 were in fixed relation to each other. By swivelling the floats on part 24 they retain their proper relation to the liquid level and only operate parts 24 when the total amount of liquid in the chamber is reduced below a given point.

It is to be understood that changes in form, construction and method of operation may be made within the scope of the appended claims.

I claim:

1. In a carburetor, a revoluble two-part drum provided with interlocking fingers, means for changing the relative position of the two parts to form pockets between said fingers, means for filling said pockets with fuel, and means for retaining the fuel in said pockets during a portion ofthe revolution of said drum.

2. A carburetor comprising a casing, a fuel chamber, a carbureting chamber, a twopart drum provided with fingers, revolubly mounted between said chambers, means for changing the relative position of the two parts to form pockets between said fingers, and means for admitting fuel into said drum.

3. A carburetorcomprising a casing, a fuel chamber, a carbureting chamber, a twopart drum provided with interlocking fingers revolubly 'mounted between said chambers, means for. changing the relative position of the two parts to form pockets between said fingers, means for admitting fuel to said pockets, and means for retaininterlocking ing the fuel in said pockets during their passage from the. fuel chamber to the car- I bureting chamber.

4. A carburetor comprising a casing, a fuel chamber, a carbureting chamber, a tWopart drum provided With interlocking fingers revolublye mounted between said chambers, means for changing the relative position of the two parts to form pockets between said fingers, .means for admitting fuel to said pockets, and means forretaining the fuel in said pockets during their passage from the fuel chamber to the carbureting chamber and means for conducting air into said drum to a point adjacent the 'carbureting chamber.

HERMAN c. DREIS;